Finding the Fourth Proportional to 1,545.39, 2,132.64 and 846.72

Step by Step Solution

1. Step 1: Write the proportion equation
   1,545.39 : 2,132.64 = 846.72 : x
2. Step 2: Convert to fraction form
   1,545.39/2,132.64 = 846.72/x
3. Step 3: Cross multiply
   1,545.39x = 2,132.64 × 846.72
4. Step 4: Simplify right side
   1,545.39x = 1,805,748.94
5. Step 5: Solve for x
   x = 1,805,748.94/1,545.39
6. Step 6: Final answer
   x = 1,168.47